Stopping fixed position scrolling at a certain point?

Solution 1:

Do you mean sort of like this?

http://jsfiddle.net/b43hj/

$(window).scroll(function(){
    $("#theFixed").css("top", Math.max(0, 250 - $(this).scrollTop()));
});

$(window).scroll(function(){
    $("#theFixed").css("top", Math.max(0, 100 - $(this).scrollTop()));
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<div id="theFixed" style="position:fixed;top:100px;background-color:red">SOMETHING</div>

<!-- random filler to allow for scrolling -->
STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>STUFF <BR>

Solution 2:

Here's a quick jQuery plugin I just wrote that can do what you require:

$.fn.followTo = function (pos) {
    var $this = this,
        $window = $(window);

    $window.scroll(function (e) {
        if ($window.scrollTop() > pos) {
            $this.css({
                position: 'absolute',
                top: pos
            });
        } else {
            $this.css({
                position: 'fixed',
                top: 0
            });
        }
    });
};

$('#yourDiv').followTo(250);

See working example →

Solution 3:

Here is a complete jquery plugin that solves this problem:

https://github.com/bigspotteddog/ScrollToFixed

The description of this plugin is as follows:

This plugin is used to fix elements to the top of the page, if the element would have scrolled out of view, vertically; however, it does allow the element to continue to move left or right with the horizontal scroll.

Given an option marginTop, the element will stop moving vertically upward once the vertical scroll has reached the target position; but, the element will still move horizontally as the page is scrolled left or right. Once the page has been scrolled back down past the target position, the element will be restored to its original position on the page.

This plugin has been tested in Firefox 3/4, Google Chrome 10/11, Safari 5, and Internet Explorer 8/9.

Usage for your particular case:

<script src="scripts/jquery-1.4.2.min.js" type="text/javascript"></script>
<script src="scripts/jquery-scrolltofixed-min.js" type="text/javascript"></script>

$(document).ready(function() {
    $('#mydiv').scrollToFixed({ marginTop: 250 });
});